Closure for bottles



Sept. 9', 1924.. y 1,508,261

c. w. TooKE ETfAL cLospE Fon BOTTLES Filed March 22. 1923 gwen-CowPatented Sept. 9, 1924.

narran4 s'raras .PATENT ori-fica Cnannns W. .Toom or SYEACUSE, NEW Yonk,AND FREDERICK n. LA FORGE, or

. WASHINGTON, DISTRICT or COLUMBIA.

CLOSUBE FOR BOTTLES.

Application filed Maroh22, 1923. vSerial No. 626,911.

To all whom t may concern.'

Be it known that we, CHARLES W. Toom and FREDERICK B. LA FORCE, citizensof `the United States, residing at Syracuse, in thc 5 county of Onondagaand State of New York, and Washington, in the District' of Colum bia,respectively, have invented certainnew and useful Improvements inClosures for Bottles; and we do hereby declare the fol- 1o lowing to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same', reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

. This invention relates to closures for boti tles, jars, or the Ilikeand, while having special reference to closures for milk bottles of thewell-known commercial type, is obviously not limited in its applicationthereto.

An object of the present invention is to provide a closure of suchmaterial and form as will eiiectually close the top of such a jar orbottle against the accidental discharge of the contents and to protectthe lip of the bottle from contamination and also pro-A tect thecontents'of the jar from contamination through contact with the closureitself.

A further object of the invention is Ato provide a closure composed Vcfasheet of material of such nature that it is softened by heat and`rigidied by cooling, at the same time adhering to the jar or bottlewhere heated, for the purpose of effecting a seal, the rigidifyingmaterial being odorless and tasteless to prevent contamination of thecontents.

A further object of the invention is to provide an over all covering orcap for bottles, or other containers, which have already been sealed,the covering being 4composed of a Sheet of a paper in which'therigiditying material has been incorporated, so that it may be shaped byheatl and pressure,and .upon cooling will retain its Shape and position,without employing' any other agency, as wire for exam le, to` hold it inplace.

With these and) other objects in view, the invention comprises certainnovel parts, elements and textures and physical and chemical propertiesapplied as shown in the drawings herewith and claimed herein. i

In the drawings: f

Figure l shows a conventionalmilk bottle with the top or closure of thepresent invention applied thereto in sealed condition, part being brokenaway to show therelation of the closure to the-bottle.

Figure 2' is a transverse sectional vlew `through the lip of the bottleand closure, as taken on 'line 2-2 of Figure 1.

Figure Sis a sectional view through the neck of the bottle, showing thelower edge of the closure applied thereto, seen in inverted plan. l v vv Like characters of referenceindicate oorresponding parts throughoutthe Several views. i p v i The present invention comprises thelshape andform of the closure as applied to the bottle but more especially `and`particularly the structure of the closure itself.' `In its structuralaspect the closure comprises a further described and sheet, 10, whichcovers over the top or openling or lip,

11,l of a bottle yshown kconventionally at :12. The material ofthe 'topwhich is of'sheet form is crimped downwardly along the lip,'1l, andunder the 11p against the bottle at the neck, `12, so proportioned'thatthe outstanding folds from the crimping are laid down upon the surfaceof that part of the material engaging against the neck to form, ifdesired, a continuous seal as indicated at Figure 3.y This continuousseal is represented by the several segmental sections, 13, which abutone with the other'about theneck, 12, with the folds,

1 4, iiattened down upon these segmental sections, 13.' t l For thepurpose of making a seal -between the segmental sections, 13, and theneck, l2,

or for maintaining the folds, 14, in such folded position, it isnecessary that the ma.

terial of thel cap be such as to respond to the requirements. For thispurpose, a sheet of-material is emlpoyed analogizing paper in that it ispreferably made of paper stock, but into which or with which has beenincorporated in any manner an odorless and tasteless resin. Preferablythis resin is the resin resulting from the reaction of phenol withfurfural. This resin is known and the ,present use'is one of itsutilities. The pervantage centage et resin incorporated with the paperpulp depends upon the required rigidity; 'lhe-resiii referred to isodorless and tastelless so that the sheet of impregnated material may'come directly in contact with the contents of the jar, as for instancemilk, and will have no contaminating eiect theren on. 'lhe resinreferred to has a further ado having once been fused by heat andrigidifled, it will not again ruse, so that once sealed in this manner,the top will not be released accidentally orotherwise by coming incontact with a hot surface or heat applied in any Way. Merely as amatter of illustration, it may be stated that the fur? iural resin isintroduced into the beater with the paper pulp and thoroughlyincorporated therewith, so that it becomes a part of the paper sheet.'.lhis urfural resin fuses at a temperature approximately 150 C., and'it is only necessary that the paper containing this resin be dried at atemperature lower than this. Dried at lesser temperature, `the resinmaintains its comminuted condition incoporated in the material of thepaper. Applying heat thereto, however, causes t e comminuted resin tofuse, forming when cooled asolid rigidied mass. By incorporating alarger percentage of the resin in the (paper, the-heating will cause theca to a ere to the neck of the bottle, e'ectua ly excluding air from thecontents of the bottle, and retaining the contents within the bottle.llt isobvious that the heat necessary for the purpose of fusing is above150 C., but it is also obvious that the heat will be applied onlymomentarily, long enough to heat vthrough the thickness of the paper,which, upon its discontinuance will almost instantly rigidi Any otherknown material which wil perform the function required or desired inthis case may be used in the present invention, which therefore in`cludes not only the form, construction and application of the cap,structurally speaking, but a paper-like material for a cap, with theresin incorporated therein. l

What we claim is:

1. A closure adapted for use by closing over the bead of a bottle neckand composed of a material adapted to be softened by4 heat to facilitatefitting over the bead of the bottle and rigidiied by cold and incapableof being again softened by heat after such rigidiication. l

2. A bottle closure adapted for use by closing over the bead of a bottleneck and composed of paper stock embodying mate'- rial adapted to besoftened by heat to facilitate tting over the bead of the bottle and Anated our signatures.

Leonesa rigiditied by cold and incapable et. being again softened byheat after suchrigidincation.

3f A bottle closure adapte-dior use by closing over the bead of a bottleneck and composed of comminuted material impregwith a materialadapted'to be softened by heat to facilitate ttin over the mouth of thebottle and rigidi by cold and incapable o being softened by heat altersuch rigidication.

4c. A bottle closure adapted for use by lclosing over the bead of abottle neck and composed of comminuted material impregnated with anodorless, tasteless material adapted to be softened by heat to facilitate fitting over the beadot the bottle and rigidified by again softenedby heat after such rigidilica tion.

5. Abottle closure adapted for use by closing over the bead oit a bottleneck and composed of material adapted to be softened by heat 'above thenormal boiling temperature of water to facilitate fitting over the beadol? the bottle and rigided by cold and incapable of being 'againnottenedby heat after such rigidification.

6. A bottle closure adapted for use by closing over the bead of abottleneck an composed of comminuted material impregnated with anodorless, tasteless material adapted to4 be softened by heat above thenormal boiling temperature of wat/er to a= cilitate' fitting over thebead oit the bottle and rigiditied by cold and incapable ol being againsoftened by heat after such rigidiiication. e l l 7', bottle closureadapted for use by closing over thegbead of a bottle neck an composed`of paperl stock impregnatedwith an odorless, be softened by heat abovethe normal boiling temperature of wat/er to facilitate ttin over thebead of the bottle and rigiditie by cold andincapable of bein againsottened by heat after such rigidi cation..

8. A bottle closure adapted for use .by closing over the bead of abottle neck and comprising comminuted materiali impregnated withfurfural resin.

9. A bottle closure adapted for use byln testimony whereof we hereuntoattix CHARLES W. lBlltlEDlElltllCK tasteless material adapted v cold andincapable oit being d le@ lll@ llii

